The ECG in assessment of myocardial reperfusion
The ECG in assessment of myocardial reperfusion The ECG is an invaluable tool to assess whether an occlusion has been resolved and blood flow has been restored. This assessment is performed daily in the catheterization laboratory in patients undergoing acute PCI. The PCI operator may use the ECG in order to obtain immediate confirmation on whether the intervention was successful. This is particularly important in STE-ACS (STEMI) and the following parameters on the ECG are assessed: Normalization (return) of ST-segment elevations Rapid T-wave inversion Normalization (return) of ST-segment elevations Successful reperfusion results in rapid and marked normalization (return) of ST-segment elevations. If the reperfusion is complete (after a total occlusion) the ST-segment is normalized within one hour, and this confirms that the coronary artery flow is patent. The rapid ST-segment return is explained by rapid normalization of myocardial cell membrane potentials in the ischemic area. Myocardial …
About the author
Cuộc đời thì ngắn, mà nghề thì miên man;cơn bệnh phập phù;kinh nghiệm hiểm nguy, còn quyết định thì thật khó.Người thầy thuốc không phải chỉ chuẩn bị để tự mình làm đúng, mà còn khiến cho bệnh nhân, người đi theo và các yếu tố xung quanh hợp tác hài…